Shuttle-checking means for looms.



Patented Aug. I3, |90Lf C. F. RUPER.

SHUTTLE GHECKING MEANS FOR LOUMS.'

(Application mad my 20, 1901.)

(No Model.)

UNrTn STATES ATE-NT Enron.

COMPANY, OF

SHUTTLE-CHECKING SAME PLACE.

MEANS FOR LOOIVIS.

SPECIFICATION formingpart of Letters Patent No. 680,623, dated August13, 1901. f

Application led May 20, 1901.

To @ZZ whom t may concern.-

Be it known that I, CHARLES F. Rornn, a citizen ot the UnitedStates, anda resident of Hopedale, county of Vorcester, State of Massachusetts,have invented an Improvement in Shuttle-Checking Means for Looms, ofwhich the following description, in connection With the accompanyingdrawings, is a specification, like numerals on the drawings representinglike parts.

This invention has'for its object the production of means for checkingand stopping the shuttle of a loom at a substantially definite place inthe shuttle-box, so that the shuttle will be in proper position on thebeat-up and ready for the next shot across the lay.

In another application, Serial No. 16,052, filed by me May 9, 1900, Ihave utilized the mechanical principle whereby if a moving body isbrought into engagement with a movable body at rest the latter willunder certain conditions take up or absorb the m0- mentum of the movingbody at the instant of rest, sothat the latter will be brought to restand the body which was at rest will be moved. The movable body in mysaid applicationis a pivotally-mounted weight which swings on itsfulcrum by lthe momentum transferred from the shuttle, bringing thelatter to rest at the moment of impact, gravity returning thesaidmovable body to initial position.

Herein the momentum absorbing' body is arranged to slide in asubstantially horizontal path by the impact of the shuttle,and means areprovided for returning it to initial position thereafter.

Figure 1 is a top or plan view of one end of the lay of a loom providedwith a shuttlebox, a picker, and the shuttle-checkin g means embodyingone form of my invention. Fig. 2 is a left-hand end elevation of theparts shown in Fig. 1, the limiting device for the check being omitted;and Fig. 3 is a side elevation, partly broken away, of themomentum-absorbing movable member or check.

The lay 1, longitudinally slotted at or near its end, as at 2, Fig. 1,for the staff 3 of the picker 4, the front Wall 5 of the shuttle-box,the overhanging top plate or guard 6, and the binder 7 may be and areall of usual or Well-known construction, the picker being serial no.61,019. (No man.)

actuated by any suitable means (not shown) to effect the light of theshuttle,each shuttleboX being provided with checking means, and in Fig.1 the picker is shown in position to receive the impact of the incomingshuttle.

In accordance with my present invention the lay beneath the shuttle-boxis provided with a longitudinal andsubstantially horizontal guideway orrecess 8, shown in Fig. llas extended from about the inner end orentrance of the shuttle-box outward tothe end of the lay, the top of theguideway being cut away at its outer end, as at 9. NVithin thisguidewayI mount the momentum-absorbing member 10, shown as an elongatedU-shaped piece of metal of suitable weight to cooperate with theshuttle, the legs of said member extending into the guideway at oppositesides of the slot 2, its head 11 being slightly bent up (see Fig. 3) andextending across the path ot' the picker and beyond the same. Across theouter open end of the guideway I have arranged a limiting device orstop, .which is conveniently made as a strap 12, of leather or othersuitable material, secured at its ends to the lay, as at 13, the stopbeing located in the path of the head of the member 10, as clearly shownin Fig. 1.

In Fig. 1 the picker and the sliding member 10 are shown in theirrelative normal positions-that is to say, in the positions assumed whenthe shuttle enters the box-and when the entering shuttle engages thepicker it moves the latter to theleft, viewing Fig. 1, until either thepicker or its staff-and in the present instance of my invention thestaffis brought into engagement with the sliding member 10, and at theinstant of impact the momentum of the shuttle is transmitted through theintermediate member or picker to the sliding member 10, the shuttle andpicker being brought to a full stop while the said member 10 slidesoutward7 due to the momentum taken up or absorbed by it. The shuttle isthus brought to rest at the proper point in the shuttle-box and thepicker is in proper position to start on its inward stroke or throw whenthe shuttle is to be shot across the lay at the next pick. The outwardsliding movement of the momentum-absorbing member 10 is limited by thestop or strap 12 IOO in the present embodiment of my invention, and itwill be manifest that as the movement of the member 10 is in asubstantially horizontal plane means must be provided for setting ormaintaining it in initial or operative position after the shuttle hasbeen thrown from the shuttle-box, inasmuch as the said member 1() wouldotherwise remain inert and inoperative at the outer end of its range ofmovement.

I have herein shown the lay as provided with a transverse slot 14,extended from the back of the lay horizontally toward and intersectingthe rear wall of the guideway 8, and in this slot 14 is extended oneend, as 15, of a bell-crank lever 15 16, fulcrumed at 17 on a suitablebracket 18, secured to the back of the lay, the arm 15 extending intothe guideway 8 and also into a socket 19, formed in one of the legs orside extensions of the momentum-absorbing member 10. (See Figs. 1 and3.) When the said member 10 is slid outward, as has been described, thebell-crank will be rocked on its fulcru-m in the direction of the arrow20, Fig. 1, and as the lay goes back a bunter 21,. herein shown as anarm secured to a fixed part of the loom-frame 22, will engage the arm 16and as the lay completes its backward movement will swing the bell-crankin the direction opposite to the arrow 20, restoring it to kthe positionshown in Fig. 1. The slot-and-pin connection which I have shown betweenthe arm 15 and the momentum absorbing member operates to return saidmember to initial position, such as is shown in Fig. 1, the rocking ofthe bellcrank by or through the action of the bunter 2l positivelysliding the member 10 inward in the guideway to proper position readyfor the next entrance of the shuttle into the shuttle-boX. A stop 23 isadj ustably mounted on the lay by means of a set-screw 24:, extendedthrough a slot 25 in the stop, the latter having a beveled face toextend between the back of the lay on the bell-crank arm 16 to limit theswinging movement of the latter in a direction opposite to the arm 20.The bunter 2l is also shown as adj ustably held by means of a set-screw26 in a socket 27, and by adjusting the bunter and the stop 23 theinward or initial position of the sliding movementabsorbing member canbe adjusted. The weight of the said member 10 is such that in connectionwith the friction thereof upon the guideway and the friction due to therotative movement of the bell-crank the shuttle and picker will bestopped substantially at the instant of impact with the slidi ng momentumabsorbing member.

I prefer to make the sliding member or check substantially as hereinshown, as the balance thereof is better preserved, and its movements arereadily guided, and it will be noted that in the present embodiment ofmy invention I have provided readily and accurately controllable meansfor maintaining or setting the check at initial position instead ofutilizing the force of gravity, as in my prior application hereinbeforereferred to.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a loom, picking mechanism, means, including a slide member, totake up the momentum of the shuttle and stop the latter in asubstantially definite place, and a setting instrumentality topositively return said means to initial position after each stoppage ofthe shuttle.

2. In a loom, the lay, a picker, a longitudinally-slidable shuttle-checkcarried by the lay and arranged to take up the momentum of the shuttletransmitted through the picker stopping the shuttle at a substantiallydetinite place, and means to return the shuttlecheck to initial positionafter each stoppage of the shuttle..

3. In a loom, the lay having a shuttle-box, a picker, ahorizontally-slidable momentumabsorbing shuttle-check carried by the layto cooperate with the picker and stop the shuttle at a substantiallydefinite place in the shuttle-box, and means to set the shuttlecheck ininitial position after the inward stroke of the picker. Y

4. In a loom, the lay, a picker, a movable shuttle-check mounted toslide longitudinally on the lay and having a part in the path of p thepicker, the momentum of the shuttle being transmitted by the picker tothe shuttlecheck, sliding the latter outward and stopping the shuttle ata substantially deiinite place, and means to engage the shuttle-checkand return it to initial position.

5. In a loom, the lay, apicker, a U-shaped shuttle-check mounted on thelay to slide in a substantially horizontal path and havin g its closedouter end in the path of the picker, to take up the momentum transmittedfrom the shuttle through the picker and stop the shuttle at asubstantially definite place, and means to engage and slide theshuttle-check inward to initial position after the inward stroke of thepicker.

6. In a loom, a picker, a longitudinallymovable sliding checkin its pathand adapted to take up and be slid outward by impact of the shuttle onthe picker, thereby stopping the shuttle at a substantially definiteplace, and means to engage and slide the check inward to initialposition after the inward stroke of the picker.

7. Shuttle-checking means for looms, comprising a slidingmomentum-absorbing member movable in parallelism to the shuttlepath, animpact member interposed between the momentum-absorbing member and theshuttle, to transmit the momentum of the latter to said absorbingmember, leaving the shuttle at rest in a substantially definite place,and a device to return the absorbing member to initial position afterits movement due to the transmitted momentum of the shuttle.

ICO

IIO

8. In aloom, a picker, the lay, a longitudinally-slidable check thereonhaving a part located beyond and in the path of the picker when movedoutward by impact of the shuttle, the momentum of the shuttle and pickerbeing transmitted by the latter to the check, sliding` the latteroutward while the shuttle and picker are brought'to rest at asubstantially definite place, and means operated by or through thebackward beat of the lay to return the check to initial position.

9. In a loom, picking mechanism, means, including a slide member, totake up themomentuln of the shuttle and stop the latter in asubstantially denite place, a device to limit I5 outward movement of theslide member, and' a setting instrumentality to positively return saidmember to initial position.

In testimony whereof I have signed my name to this specification in thepresence of zo two subscribing Witnesses.

CHARLES F. ROPER.

Witnesses:

GEORGE OTIs DRAPER, ERNEST W. WOOD.

